Bump version to 0.1.7 — Windows playtest fixes

Critical:
- NWC wallet now stored per-account (wrystr_nwc_<pubkey>); switching
  accounts loads the correct wallet automatically
- Clear NDK signer before account switch to prevent race where old
  account could sign outgoing events
- LoginModal: add "New account" tab to create a fresh keypair inline
  (same flow as onboarding, with nsec copy + confirmation checkbox)
- ThreadView: add like + zap action row to the root note (was missing)

UX:
- Zap button now conditional on lud16/lud06 (NoteCard, ProfileView,
  RootNote) — no zap button shown for profiles without Lightning
- Remove "200 notes" counter from sidebar footer
- AccountSwitcher: larger active account avatar (w-8), name more
  prominent; sign-out/remove moved into dropdown only

Quick wins:
- AboutView: add GitHub Sponsors link
- ComposeBox: paste image from clipboard → uploads via nostr.build,
  inserts URL at cursor with "uploading image…" status

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/shared/AboutView.tsx

@@ -8,6 +8,7 @@ const LIGHTNING_ADDRESS = "harpos@getalby.com";
 const BITCOIN_ADDRESS = "bc1qcgaupf80j28ca537xjlcs9dm9s03khezjs7crp";
 const KOFI_URL = "https://ko-fi.com/jure";
 const GITHUB_URL = "https://github.com/hoornet/wrystr";
+const GITHUB_SPONSORS_URL = "https://github.com/sponsors/hoornet";
 
 function CopyButton({ text }: { text: string }) {
   const [copied, setCopied] = useState(false);
@@ -111,6 +112,17 @@ export function AboutView() {
                 {GITHUB_URL} ↗
               </a>
             </div>
+            <div className="flex items-center gap-3">
+              <span className="text-text-muted text-[12px] w-16 shrink-0">Sponsors</span>
+              <a
+                href={GITHUB_SPONSORS_URL}
+                target="_blank"
+                rel="noopener noreferrer"
+                className="text-accent text-[12px] hover:text-accent-hover transition-colors"
+              >
+                {GITHUB_SPONSORS_URL} ↗
+              </a>
+            </div>
           </div>
         </section>